Home / 112,384.10-155,183.37-74,828.90

Finding the Fourth Proportional to 112,384.10, 155,183.37 and 74,828.90

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Solution

The fourth proportional to 112,384.10, 155,183.37 and 74,828.90 is: 103,326.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,384.10 : 155,183.37 = 74,828.90 : x
  2. Step 2: Convert to fraction form
    112,384.10/155,183.37 = 74,828.90/x
  3. Step 3: Cross multiply
    112,384.10x = 155,183.37 × 74,828.90
  4. Step 4: Simplify right side
    112,384.10x = 11,612,200,875.39
  5. Step 5: Solve for x
    x = 11,612,200,875.39/112,384.10
  6. Step 6: Final answer
    x = 103,326.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.